[1] He received his PhD with the dissertation Zur Geschichte der griechischen Gradationsbildungen, which was about the Greek language.

In 1909, Güntert passed the staatsexamen in German, Greek and Latin, and subsequently worked as a gymnasium teacher in Heidelberg from 1909 to 1921.

He completed his habilitation in 1912/1913 in Indo-European linguistics and classics with the thesis Reimwortbildung im Arischen und Altgriechischen, which examined rhymes in Indo-Iranian and Ancient Greek.

[1] His Der arische Weltkönig und Heiland (1923) is widely regarded as the finest work ever published on Indo-European religion.

[3] Güntert's research on Indo-European religion has had a strong influence on the later work of Georges Dumézil, Mircea Eliade, Herman Lommel and other scholars.